Comparison

Unit Converter ∞ vs CALC 1 Programmable Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Unit Converter ∞

This app offers a comprehensive unit conversion experience with a vast database of over 1000 units across 50 categories. It supports mixed units, custom unit creation, and provides a unique, visually appealing interface for all your conversion needs.

Highlights
  • 50+ Categories & 1000+ Units
  • Create your own unit
  • Mixed-unit Support
  • Currency Exchange
  • Price Conversion
  • Widget Support
Features
Read full description

Forget what you know about common Unit Converters. Undoubtedly, Converter ∞ (Infinity) offers unique features & greatly new user experience!!! ◉ Featured: Converter ∞ greatly supports huge Database with 50 available categories and over 1000 units (Include mixed unit such as ft + in, m + cm,...) so Converter ∞ can help you solve almost every conversion problem in your Work, your Study and also your daily life. You can, moreover, add your regular conversion to Favorite Section so that your conversion task would be as fastest as ever! ◉ Perfect Design: Converter ∞ has a shape of arc combined with sci-fi style offering convenient & interesting user experience. ◉ Ultimate Converter: More than a normal Unit Converter, Converter ∞ can help create your self–made conversion units to the converter. It makes your converter become Unlimited !!! ◉ Official Website: Http://iPhoneCalculator.com ◉ Features: ▸ Support Widget ▸ Universal Converter App ▸ 50+ Categories &1000+ Units ▸ Currency(Money) Exchange ¹ ▸ Price Conversion ▸ Luminous Conversion ▸ Retina Display Support ² ▸ Global Favorite Section ▸ Category Favorite Section ▸ Create your own unit ▸ Turn On/Off Units ▸ Turn On/Off Categories ▸ Mixed-unit Support ▸ Fraction(Mixed) Support ▸ Scientific Calculator ▸ Support Widget ▸ Online DB Update ▸ Online Update Currency Rate ³ ▸ Online Tutorial & Documents. ◉ Featured Conversion: ▸ Mixed Unit Conversion: Met - Ft + In. ▸ Fuel Consumption: Km / Lit - Mil / Gal. ▸ Price Conversion: USD / Gal - EUR / Lit. ▸ Luminous Conversion Tool: Convert Among Luminous Flux, Intensity and Apex Angle. ▸ Electrical Conversion Tool: Convert Among Electric Current (A), Power (W), Voltages (V). ¹: Source: Yahoo! Finance (85 Currencies) ²: All iPhone (Incl. 7/7+) / iPad Retina Display ³: Manual & Hourly Auto Update. New Data Base Update available weekly. No Ads & High Performance. ◉ Categories: Length, Area, Volume, Mass, Acceleration Linear, Acceleration Angular, Angle, Calorific Value, Data, Capacitance,Conductance,Conductive, Currency, Data Transfer, Density Common, Electric Field, Energy, Entropy, Force, Fuel Consumption, Heat Capacity, Heat Flux Density, Illumination, Inductance, Linear Charge Density, Luminance, Linear Current Density, Magnetic Flux Density, Moment Inertia, Power, Pressure, Radioactivity, Radiation Absorb Dose (Rate), Resistance, Price, Resistivity, Speed, Surface Tension, Torque, Time, Thermal Conductivity / Resistivity, Thermal Expansion, Typography, Temperature Velocity Angular, Viscosity Dynamic / Kinematic, Volume Flow Rate, Volume Dry.

About

CALC 1 Programmable Calculator

Create custom calculators with AI-generated JavaScript functions for precise calculations and data visualization. Assign programs to keys and manage data efficiently. Offers multiple calculation modes and extensive documentation.

Highlights
  • AI-assisted JavaScript function creation
  • Customizable function calculators
  • Data visualization and plotting
  • Programmable calculator keys
  • List and data management
  • Multiple calculation modes (algebraic, RPN)
Features
Read full description

Customize your calculators for quick and accurate calculations with CALC 1 - the ultimate programmable calculator for your iPhone or iPad. * Harness the power of AI: Ask your favorite AI tool to create JavaScript functions for you * Effortlessly create Function Calculators: Simply copy the AI-generated function code to your clipboard and tap the add button in the "Function Calculators" list - CALC 1 will automatically create a new Function Calculator (Always test the Function Calculator to verify the function is as you intended) * Execute functions with ease: Key in the parameter values to run the function and get instant results * Perform breakeven analysis: Function Calculators can solve for any non-integer parameter * Visualize data effortlessly: Create plots as a function of any parameter by entering the min and max values * Assign programs to individual calculator keys for personalized functionality * Create custom calculators by copying and pasting keys from pre-built calculators * Automatically generate keys from entered expressions for effortless reuse * CALC 1 has over 100 built-in functions that you can use from your JavaScript code * Manage lists and data with the List Manager and Data Manager for quick and accurate importing * Choose between algebraic, chain, or RPN calculation modes with an automatic stack * Access the CALC 1 documentation site with over 100 pages of searchable content and video tutorials, easily accessible through help links (?) within the app Whether you're a student, professional, or simply someone who appreciates the power of customization and AI-assisted productivity, CALC 1 offers a consistent and efficient solution to a wide range of problems. Upgrade your calculation experience with CALC 1 today!

Screenshots

Unit Converter ∞4 screens
CALC 1 Programmable Calculator4 screens

Verdict

The call

The clearest difference is price: Unit Converter ∞ at $2.99 against CALC 1 Programmable Calculator's $9.99. Unit Converter ∞ also leads on ratings volume (244 vs 9) and iOS requirement (8.0 vs 16.1). CALC 1 Programmable Calculator's advantage is update cadence (every 5 weeks vs every 9 months) and review sentiment (100% vs 76%). On rating, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Unit Converter ∞ costs $2.99 and CALC 1 Programmable Calculator $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

CALC 1 Programmable Calculator holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Unit Converter ∞ has 244 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 76% of Unit Converter ∞'s written reviews are positive against 100% of CALC 1 Programmable Calculator's.

UpkeepUpdate frequency

Unit Converter ∞ ships an update every 9 months, CALC 1 Programmable Calculator every 5 weeks. The most recent releases landed on October 16, 2026 and September 27, 2026 respectively.

Scorecard6 real differences · 4 level
Unit Converter ∞ versus CALC 1 Programmable Calculator: the parameters behind the verdict, then further details
ParameterUnit Converter ∞CALC 1 Programmable Calculator
Price$2.99 — better$9.99
Rating4.4 (244 ratings)4.6 (9 ratings) — better
Positive reviews75.8% of reviews100.0% of reviews — better
Number of ratings244 — better9
Update frequencyEvery 9 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS8.0 — better16.1
Further details — not scored
Size19 MB8 MB
Age rating4+4+
DeveloperIncpt.MobisCalcFxC, LLC

Customer experience

Unit Converter ∞

All ratings244 ratings
Positive86.5%
Neutral5.3%
Negative8.2%
Written reviews330 reviews
Positive75.8%
Neutral5.8%
Negative18.5%

CALC 1 Programmable Calculator

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Unit Converter ∞

Reported bugs

2 issues
  • Incorrect unit conversions for some measurements
  • Compatibility issues with newer iOS versions

Requested features

4 requests
  • Add support for more currencies
  • Improve search and navigation
  • Provide a list-based interface option
  • Add a number base converter

CALC 1 Programmable Calculator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Unit Converter ∞

No in-app purchases

None

CALC 1 Programmable Calculator

No in-app purchases

Questions

Is Unit Converter ∞ free?
Unit Converter ∞ costs $2.99, with no in-app purchases.
Is CALC 1 Programmable Calculator free?
CALC 1 Programmable Calculator costs $9.99, with no in-app purchases.
Which has better reviews, Unit Converter ∞ or CALC 1 Programmable Calculator?
CALC 1 Programmable Calculator is rated higher. Unit Converter ∞ averages 4.4 out of 5 from 244 ratings, while CALC 1 Programmable Calculator averages 4.6 from 9 ratings.
Do Unit Converter ∞ or CALC 1 Programmable Calculator have ads?
Neither Unit Converter ∞ nor CALC 1 Programmable Calculator shows ads.
Which is updated more often, Unit Converter ∞ or CALC 1 Programmable Calculator?
Unit Converter ∞ ships an update every 9 months, and CALC 1 Programmable Calculator every 5 weeks. Most recently, Unit Converter ∞ was updated on October 16, 2026 and CALC 1 Programmable Calculator on September 27, 2026.

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